Wall stud calculator
For basement walls, garages and additions. It counts studs on center plus extras for corners and openings, and plate stock for a bottom plate and a double top plate. On basement slabs, use pressure-treated lumber for the bottom plate.
What I'd have on hand
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How the math works
Wall length in inches divided by stud spacing, plus one for the end. Each corner or wall intersection adds two studs for backing, and each door or window adds two for the extra king and jack studs. Headers, cripples and sills aren't included, so add those from your window and door sizes.
Common questions
How many studs do I need per foot of wall?
At 16″ on center it's about ¾ of a stud per foot plus one. Once you add corners, openings and waste, a lot of framers just figure one stud per foot.
Do basement walls need a pressure-treated bottom plate?
Yes. Lumber in direct contact with concrete needs to be pressure treated. Many builders also put a foam sill gasket under it.
Should basement walls be 16 or 24 inches on center?
Non-bearing basement walls are often allowed at 24″, but 16″ gives better backing for drywall, cabinets and TV mounts. Check your local code and drywall thickness.